Engine-valve.



P. M. ORLOPP.

ENGINE VALVEx APPLICATION FILED SEP'1'.12, 1911 1,05 9 ,485. Patented Apr. 22, 1913 EGN WITNESSES.

I My Arr-rs.

' proper time.

TED TA'llEES PIATdI/IJORLOPP, OFINDIANAPOLIS, INDIANA.

ENGINE-VALVE.

Specification of Letters Patent.

Application filed September 12, 1911. Serial No. 648,953.

To all whom it may concern Be it known that I, PIA'lT M. Onnorr, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Engine-Valves, of which the following is a specification.

High efiiciency in hydro-carbon engines is governed largely by the action of the valves which control the inlet and outlet ports to the combustion chambers. In cam controlled valves the cams often vary the distance of the throw ot'the valves with the rapid increase of speed of the engine so that the valves will not uniformly be closed at the This variation in movement of the valves aii'ects the efficiency of the engine by limiting the charge of gas taken into the combustion chamber or by preventing a complete discharge of the hydro-carbons. In either case the engine does not develop the power it iscapable of developing.

The object of this invention is to provide a valve for hydro-carbon engines whereby uniformity of movement of the valves is secured and maintained, so that the intake of gas and the discharge of the hydro-carbons is accomplished when the piston-head is in proper position, and whereby the maximum efliciency oi the engine is maintained.

A further ob'iect of the invention is to pro vide the cylinders of hydro-carbon engines with a single port for the admission of both the gas and the discharge ofthe hydro carbon, so that leakage around the ports is materially reduced.

A further object of the invention is to provide a valve for the ports of hydro-car bon e1; {tines which is simple in construction and efficient in operation.

I accomplish the objects of the invention by means of the valve illustrated in the accompanying drawings, forming a part hereof, in which Figure 1 is a central vertical sectional view through the upper portion of a hydrocarbon engine cylinder, showing my valve occupying a position to allow a charge of gas to be drawn into the combustion chamber. Fig. 2 is a cross section of the valve showing same occupying a position to allow the hydro-carbons to be exhausted. Fig. 3 is a longitudinal central sectional view through the housing for inclosing the valve, the latter being shown in elevation.

Referring to the drawings, 10 represents the combustion chamber of a hydro-carbon engine; 11 the piston-head 12 the crankshaft, and 13 the piston-rod. The combustion chamber 10 is provided with a single port-hole 15 through which the gas is received and the hydro-carbons discharged.

16 represents the housing for inclosing the valve and said housing is provided with the port-holes 17, 18 and 19, the port 17 communicating with the port 15 in the combustionchaniber. The housing is secured to the engine cylinder by means of suitable bolts 20.

The valve for controlling the inlet of the gas and the outlet for the hydrocarbons comprises a hollow drum or cylinder, the drum snugly fitting the inner dimension of the housing 16. The valve is closed at the ends by means of the walls 25, and said valve rotates on suitable trunnions 26 which engage the end walls of the housing 16. The valve is provided with the longitudinally extending apertures 30, 31, 32 and 33, which, as the valve rotates, are successively brought intocommunication with the several portholes 17, 18 and 19 in the housing 16. The valve is also provided with a centrally located partition wall or battle-plate which divides the valve into two compartments. and each of said compartments is provided with two port holes arranged on opposite sides in the peripheral surface of said valve.

Movement of rotation is imparted to the valve from the crankshaft 12 through a suitable sprocket-chain 40, which is carried by the sprocket-wheels 43 and 4 1, and the movement of rotation between the shaft and valve is four to one, so that the movement of the valve will be timed to bring the apertures 30, 31, 32 and 33 into successive registration with the port-holes 17, 18 and 19, and at a time when the piston-head 11 is occupying its most favorable position, for either the intake of the gas or the discharge of the hydrocarbon. The movement of the valve is as follows: When the aperture 33 municates with the port-hole 15 leading into the combustion chamber of the engine, the aperture 32 on the opposite side of the valve will register with the intake-port 19 (see Fig. 1), thereby allowing an uninterrupted charge of gas to be drawn into the combustion chamber. At this particular instant the exhaust-port 18 is sealed by means of :the

peripheral wall 50 of the valve, and when Patented Apr. 22, 1913.:

registers with the port-hole 17, which combrings the aperture 32 in communication with port-hole 17 and the aperture 33 into communication with the exhaust-port 18,

thereby allowingvthe hydro-carbons to be discharged from the engine cylinder. Further movement of the valve brings the aperture 31 into registration with the port 17 and the aperture 30 into registration with the intake port 19 so that a charge of gas is again drawn into the combustion chamber of the engine, when the operation as above outlined is repeated.

Th baflle-plate 35 in addition to separating the valve into two compartments also serves the purpose of raising the temperature of the gas before entering the combustion chamber. In examining Fig. 2, it will be noted that the battle-plate 35 stands so as to deflect the course of the hydro-carbon and direct same toward the exhaust-port 18. The plate 35 is-heated by the discharged hydro-carbons playing against its surface, and with the continued movement of the valve said plate is subsequently exposed to the incoming charge of gas, whereby the temperature of the latter is increased and rarefied, and thus rendered more ignitible. Having thus fully described my said invention, what I desire to secure by Letters Patent, is

1. An explosive engine having a combustion chamber provided with a single passageway for the intake of fuel and the discharge of hydrocarbon, a piston-head operating in said chamber, a crank-shaft, a piston rod connecting the head and shaft to gether, a hollow rotary valve controlling the passageway leading into. the combustion chamber, said valve having two separate passageways transversely through it, each passageway having two distinct openings separate from the openings of the other pas sageway, the two openings of each passage- Way being on the same side of a planet through the axis of the valve and on the 0pposite side of said plane from the openings of the other passageway, and means con necting the crankshaft and valve together for imparting movement of rotation to said valve to bring the passageways therein into successive and progressive communication with the bustion c amber.

2. An explosive engine having a combustion chamber provided with a single passageway for the intake of fuel and the discharge of hydrocarboma piston head operating in said chamber, a crank-shaft, a piston rod'connecting the head and shaft to gether, a hollow rotary valve controlling the passageway leading into said combustion chamber, a. casing for inclosin the valve,

assageway leading into the comsaid casing being provided. with passageways for the inlet of fuel and the discharge of hydrocarbon, a wall dividing said valve I into two compartments, two openings separate from each other for each compartment the said openings for one compartment being on opposite sides of a plane through the axis of the valve from those of the other compartment, and means connecting the crank-shaft and valve together for imparting movement of rotation to said valve, to

bring the passageways therein into successive and progressive communication with the passageway leading into the combustion chamber of the engine and the passageways in the valve casing.

In witness whereof, I, have hereunto set my hand and seal at Indianapolis, Indiana, this 8th day of September, A. D. one thousand nine hundred and eleven. I

PIA-TT M. ORLOPP. [L.s.]

Witnesses:

F. W. WOERNER, L. B. WOERNER. 

